This website exists to help people doing personal research projects on
particular areas within a locality. So long as you are using our data for
only a small number of units, you are not making money out of what you are
doing, and you are not systematically re-publishing our data, you do not
need to request permission from us, but you do need to acknowledge us as
your source with the wording:

"This work is based on data provided through www.VisionofBritain.org.uk
and uses historical material which is copyright of the Great Britain Historical
GIS Project and the University of Portsmouth".

Where the above statement is included in a web page or similar online resource,
the reference to "www.VisionofBritain.org.uk" must be a working hyperlink.